Window operating mechanisms



July 23, 1957 M. J, fRAcY WINDOW OPERATING MECHANISMS 2 Sheets-Sheet 2Filed Sept. 11. 1953 INVENTOR. MICHAEL J. TRACY United States Patent OpvWINDGW OPERATING MECHANISMS Michael J. Tracy, Robertson, Mo. ApplicationSeptember 11, 1953, Serial No. 379,525

4 Claims. (Cl.` 268-23) This invention relates generally to window sashoperating mechanisms and more specifically to mechanisms foradjustingthe sashes of window structures of the type having each aplurality of sashes disposed in louver arrangement and adapted for suchadjustment as to provide Ventilating openings between portions ofvarious adjacent sashes, the predominant object of the invention beingto provide an operating mechanism for the type of window structurereferred to which is extremely simple in construction and operation andis capable of performing its intended functionv in a highly etlicientmanner.

Fig. 1 is an inside elevation of a window structure provided with theimproved operating mechanism of this invention.

Fig. 2 is an enlarged, fragmentary, vertical section taken on line '2-2of Fig. 1.

Fig. 3 Vis a fragmentary section taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged, fragmentary, section taken on line 4-4 of Fig. 1.

Fig. 5 is an enlarged, fragmentary, Vsection taken on line 5-5 of Fig.1.

In the drawings, wherein is shown for purposes of illustration, merely,one embodiment of the invention,.1` designates the frame of a windowstructure which is designated generally by the reference character A.The window frame 1 is of .rectangular shape, as is shown in Fig. l,being composed of a sill portion la, a head portion 1b, and opposedhollow side jamb portions 1c.

In the embodiment of the invention illustrated in the drawings thewindow frame 1 has associated therewith a plurality of louver-typewindow sashes which are designated by the reference characters 2, 3, 4and 5,` said sashes comprising each a sash frame 6 in which is glazed apane of glass, or other material 7. While the precise constructions ofthe frames of the sashes and the frame of the window structure are notimportant insofar as this invention is concerned, by preference saidyframes are constructed as shown to good advantage in Fig. 2. In otherwords, the frame 1 of the window structure has a head portion 1a whichis channel-shaped in cross-section, a sill portion 1b which is alsochannel- Shaped in `cross-section and includes an inclined wall portion8, and opposed hollow jamb portions shaped as shown to good advantage inFigs. 4 and 5. The frame of the window structure includes a member ilwhich at its upper lend is shaped as shown in Fig. 2, that is to say.said member is Aprovided with a horizontal portion 9a which is welded,or otherwise secured, to the bottom wall of the head portion 1a of thewindow structure frame and hasextended therefrom an inclined portion 9b.At its lower end the member 9 is provided with a horizontal ange 9 whichis welded, or otherwise secured, to the top wall of thesill portion 1bof the 'window'structure frame. The opposed side portions 9d of themember 9 are shaped as shown in Figs. 4 and 5,

2,800,322 Patented July 23, l 957 these side portions beingchannel-shaped and each having a relatively long leg 9e which serves asan abutment. The member 9 is in the form of a rectangular, marginalframe which encloses an opening 10 which extends substantially from topto bottom and substantially from side to side of said member.

Each of the sashes 2, 3, 4, and 5 is provided with a shaft or rod 11which extends transversely of the window structure and is supported forrotary movement by having its ends project through openings formed inwalls of the jamb portions 1c of the window structure frame 1, theseshafts or rods preferably being formed from tool-resisting steel. In thecase of each sash the rod 11 thereof is welded, as indicated at 1'2, oris otherwise secured, to an element 13 which forms a rigid part of thetop portion of the sash, this element 13 having a curved portion 13?Lwhich partly embraces the rod. The curved portion 13a ofthe uppermostsash 2is contacted by the inclined upper portion 9b of the member 9, asshown in Fig. 2, and each sash 3, 4, and 5 located beneath saiduppermost sash receives in contact with the curved portion 13a of itsupper portion 13 an inclined portion 14 formed on the lower portion ofthe sash located immediately above said sash.

The shaft or rod 11 of each of the sashes 2, 3, and 4 has welded, orotherwise secured to each of its opposite ends a crank arm 15, and therod 11 of the lowermost sash 5 has such a crank arm 15 welded, orotherwise secured thereto at only one end thereof. The arms 15 at theleft-hand side of the window structure, as viewed in Fig. l, which isthe side at which the rod 11 of sash 5 is provided with an arm 15, arepivotally connected at their outer ends to an elongated bar 16, saidarms and said elongated bar being housed within the channel-shaped jambportion 1C of the window structure frame 1. Likewise at the oppositeside of the window structure an elongated bar 17 is provided to which ispivotally connected the outer end portions of the arms 1S of the rods 11of the sashes 2, 3, and 4. The lower end portion of this elongated baris pivotally connected by a pivot element 1S to a member 19, this memberbeing welded, or otherwise secured to an end portion of the rod 11 ofthe lowermost sash 5, as is shown to good advantage in Fig. 3, whereinthe weld for securing the member 19 to the rod of the lowermost sash isdesignated by the reference character 20. 'The member 19 is ofbifurcated shape, as is shown clearly in Fig. 3, said member comprisingone plate 19a which is welded to the rod 11 of the lowermost sash and towhich is welded, or otherwise secured a second plate 19b which is soshaped that its upper portion is spaced from the upper portion of theplate 19a. The spaced apart plate portions of the member 19 are providedwith alined or coplanar open-ended slots 21 which extend at an angle toline between the axis of the shaft or rod 11 of the lowermost sash andthe point of connection at 1S of plates 19a and 19h to bar 17, and whichserve a purpose to be hereinafter set forth.

The arms 15 at the right-hand side of the window structure and theelongated bar 17 to which said arms are pivotally connected, are housedwithin the channelshaped jamb portion of the window structure frame atthat side of the window structure, `and projected through r the spacebetween the spaced apart plate portions of the member 19 is a worm orscrew 22. This worm or screw is supported in suitable thrust bearings 23and 24, the thrust bearing 23 being secured to the inside face of theouter wall of the jamb portion 1 of the window structure frame in whichsaid worm is disposed. The thrust bearing 24 is welded to a plate 25which closes an opening 25 formed through the inside wall of the jambportion 1c of the window structure frame in which the worm is disposed.The plate is secured in place relative to the inside wall of the jambportion of the window structure frame by means of patch head bolts 26which are originally provided with auxiliary head portions (not shown)which snap off when the limit of torque is reached in applying the boltsso that they cannot thereafter be withdrawn by unauthorized persons. Theouter shaft portion of the worm projects through an opening formedthrough the plate 25 and secured to the projected outer end portion ofsaid worm shaft by a set screw 27 is a handle 27 which facilitatesrotation of said worm, Also, mounted on the worm or screw 22 is a wormnut 28 which is adapted to move longitudinally of the worm in one or theopposite direction on rotation of said worm in the appropriatedirection. The worm nut is provided with pins 29 which extend outwardlyfrom said nut in opposite directions, and mounted on each of said pinsis a hardened wear sleeve 30, the oppositely extending pins and thesleeves mounted thereon being projected into L to move said member andthereby rotate the rod 11 of the lowermost sash 5 to which said member19 is welded to adjust said lowermost sash as desired. Also, because thearms 15 of the sashes 2, 3, and 4 are connected to the member 19 by theelongated bar 17 and are secured to the rods 11, the rods 11 of saidsashes 2, 3, and 4 will be correspondingly rotated by rotation of thehandle 27, and the rotary movement of the rods 11 of the vari-' oussashes will be transferred to the opposite side of the window structureby the elongated bar 16 at said opposide side of said window structurein cooperation with the arms 15 to which said elongated bar is pivotallyconnected. As the sashes are shown in full lines in Fig. 2 they are intheir closed positions and all that need be done to adjust said sashesto their fully open position or to an intermediate position is to rotatethe handle 27 in the appropriate direction to cause the worm nut 28 totravel outwardly of the worm 22. This will rotate thc member 19 to theposition in which it is shown by broken lines in Fig. 2, or to anintermediate position, thereby rotating the rod 11 of the lowermost sash5 and such rotation of said rod will be transmitted by the elongatedbars 16 and 17 and the arms 15 to the rods of the other sashes tocorrespondingly adjust the other sashes.

I claim:

1. In a window comprising a window frame having side jambs at least oneof which is hollow and which has an inside wall and an outside wall, aplurality of rotatable shafts extending between the jambs, each shaft atone end projecting into the hollow jamb, each shaft carrying a louvertype window sash: operating mechanism for the sashes comprising a crankarm fixed to cach shaft at said one end thereof within the hollow jamb,means within the hollow jamb connecting the outer ends of said arms forconjoint rotation of the shafts, one of said arms having a slotextending at an angle to the line between the axis of the shaft to whichsaid one arm is xed and the point of connection of said one arm to saidconnecting means, said slot being open at its outer end, said hollowjamb having an opening in its inside wall, a plate secured to the outerside of the inside wall of the hollow jamb u on the end of the screwinward of the hollow jamb for manually rotating the screw, and a nut onthe screw having means extending laterally therefrom into the slot insaid one arm and slidable in said slot.

2. In a window comprising a window frame having hollow side jambs, eachhaving an inside wall and an outside wall, a plurality of rotatableshafts extending between the jambs, the ends of the shafts projectinginto the hollow jambs, each shaft carrying a louver type window sash:operating mechanism for the sashes comprising a crank arm fixed to eachshaft at each end thereof within the hollow jambs, elongate bars withinthe hollow jambs connecting the outer ends of said arms for conjointrotation of the shafts, one of said arms in one jamb having a slotextending at an angle to the line between the axis of the shaft to whichsaid one arm is xed and the point of connection of said one arm to therespective bar, said slot being open at its outer end, said one hollowjamb having an opening in its inside wall, a plate secured to the outerside of the inside wall of said one jamb over the opening, a thrustbearing carried by said plate, a screw mounted in said thrust bearingand extending to the outside wall of said one hollow jamb, a thrustbearing mounted on the inner side of the outside wall of said one hollowjamb supporting the outer end of the screw, means on the end of thescrew inward of said one jamb for manually rotating the screw, and a nuton the screw having a pin extending laterally therefrom into the slot insaid one arm and slidable in the slot.

3. In a window comprising a window frame having side jambs at least oneof which is hollow and which has an inside wall and an outside wall, aplurality of rotatable shafts extending between the jambs, each shaft atone end projecting into the hollow jamb, each shaft carrying a louvertype window sash: operating mechanism for the sashes comprising a crankarm fixed to each shaft at said one end thereof within the hollow jamb,means within the hollow jamb connecting the outer ends of said arms forconjoint rotation of the shafts, one of said arms comprising a pair ofplates spaced axially with respect to the related shaft, each platehaving a slot therein extending at an angle to the line between the axisof the related shaft and the point of connection of the plates to saidconnecting means, said slots being coplanar and open at their outerends, said hollow jamb having an opening in its inside wall, a platebolted to the outer side of the inside wall of said hollow jamb over theopening, a thrust bearing carried by said plate, a screw mounted in saidthrust bearing and extending between said plates to the outside wall ofsaid hollow jamb, a thrust bearing mounted on the inner side of theoutside wall of the hollow jamb supporting the outer end of the screw,means on the end of the screw inward of the hollow jamb for manuallyrotating the screw, and a nut on the screw having a means extendinglaterally therefrom into said slot and slidable in said slots. Y

4. In a window comprising a window frame having hollow side jambs, eachhaving an inside wall and an outside wall, a plurality of rotatableshafts extending between the jambs, the ends of the shafts projectinginto the hollow jambs, each shaft carrying a louver type window sash:operating mechanism for the sashes comprising a crank arm fixed to eachshaft at each end thereof within the hollow jambs, elongate bars withinthe hollow jambs connecting the outer ends of said arms for conjointrotation of the shafts, one of said arms in one jamb comprising a pairof plates spaced axially with respect to the related shaft, each platehaving a slot therein extending at an angle to the line between the axisof the related shaft and the point of connection of the plates to therespective bar, said slots being coplanar and open at their outer ends,said one hollow jamb having an opening in its inside wall, a platesecured to the outer side of the inside wall of said one jamb over theopening by means of patch head bolts, a thrust bearing carried by saidplate, a screw mounted in said thrust bearing and extending between saidplates to the outside wall of said one hollow jamb, a thrust bearingmounted on the inner side of the outside wall of said one hollow jambsupporting the outer end of the screw, means on the end of the screwinward of said one jamb for manually rotating the screw, and a nut onthe screw having pins extending laterally therefrom into said slots andslidable in the slots.

References Cited in the file of this patent UNITED STATES PATENTS TracyDec. 20, 1932 Ferri Sept. 27, 1938 Brundage June 10, 1952 Baumann Aug.26, 1952 Schottenberg May 5, 1953

